1 /*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2003, 2006, 2009 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22 #include "config.h"
23 #include "RenderApplet.h"
24
25 #include "Frame.h"
26 #include "HTMLAppletElement.h"
27 #include "HTMLNames.h"
28 #include "HTMLParamElement.h"
29 #include "PluginViewBase.h"
30 #include "Widget.h"
31
32 namespace WebCore {
33
34 using namespace HTMLNames;
35
RenderApplet(HTMLAppletElement * applet,const HashMap<String,String> & args)36 RenderApplet::RenderApplet(HTMLAppletElement* applet, const HashMap<String, String>& args)
37 : RenderWidget(applet)
38 , m_args(args)
39 {
40 setInline(true);
41 }
42
~RenderApplet()43 RenderApplet::~RenderApplet()
44 {
45 }
46
intrinsicSize() const47 IntSize RenderApplet::intrinsicSize() const
48 {
49 // FIXME: This doesn't make sense. We can't just start returning
50 // a different size once we've created the widget and expect
51 // layout and sizing to be correct. We should remove this and
52 // pass the appropriate intrinsic size in the constructor.
53 return widget() ? IntSize(50, 50) : IntSize(150, 150);
54 }
55
createWidgetIfNecessary()56 void RenderApplet::createWidgetIfNecessary()
57 {
58 HTMLAppletElement* element = static_cast<HTMLAppletElement*>(node());
59 if (widget() || !element->isFinishedParsingChildren())
60 return;
61
62 // FIXME: Java applets can't be resized (this is a bug in Apple's Java implementation).
63 // In order to work around this problem and have a correct size from the start, we will
64 // use fixed widths/heights from the style system when we can, since the widget might
65 // not have an accurate m_width/m_height.
66 int contentWidth = style()->width().isFixed() ? style()->width().value() :
67 width() - borderAndPaddingWidth();
68 int contentHeight = style()->height().isFixed() ? style()->height().value() :
69 height() - borderAndPaddingHeight();
70 for (Node* child = element->firstChild(); child; child = child->nextSibling()) {
71 if (child->hasTagName(paramTag)) {
72 HTMLParamElement* p = static_cast<HTMLParamElement*>(child);
73 if (!p->name().isEmpty())
74 m_args.set(p->name(), p->value());
75 }
76 }
77
78 Frame* frame = this->frame();
79 ASSERT(frame);
80 setWidget(frame->loader()->subframeLoader()->createJavaAppletWidget(IntSize(contentWidth, contentHeight), element, m_args));
81 }
82
layout()83 void RenderApplet::layout()
84 {
85 ASSERT(needsLayout());
86
87 computeLogicalWidth();
88 computeLogicalHeight();
89
90 // The applet's widget gets created lazily upon first layout.
91 createWidgetIfNecessary();
92 setNeedsLayout(false);
93 }
94
95 #if USE(ACCELERATED_COMPOSITING)
requiresLayer() const96 bool RenderApplet::requiresLayer() const
97 {
98 if (RenderWidget::requiresLayer())
99 return true;
100
101 return allowsAcceleratedCompositing();
102 }
103
allowsAcceleratedCompositing() const104 bool RenderApplet::allowsAcceleratedCompositing() const
105 {
106 return widget() && widget()->isPluginViewBase() && static_cast<PluginViewBase*>(widget())->platformLayer();
107 }
108 #endif
109
110 } // namespace WebCore
111